Datasets:

pengxiang
/

nap-parallel-packing-demo

Core idea: blocks within each sample are semantically related but not duplicates; block order is shuffled to break privileged sequential ordering.

Format

Each line in train.jsonl is a JSON object:

{
  "text": "<blk>block 1 text</blk><blk>block 2 text</blk><blk>block 3 text</blk>",
  "blocks": ["block 1 text", "block 2 text", "block 3 text"],
  "metadata": {
    "source_para_ids": [123, 456, 789],
    "num_blocks": 3,
    "total_tokens": 1200,
    "type": "parallel"
  }
}

Two sample types:

parallel (50%): 3 semantically related paragraphs from different documents, shuffled
sequential (50%): single document text preserving natural order

Pipeline

Paragraph splitting from FineWeb (quality-filtered)
Embedding with Qwen3-Embedding-0.6B (Matryoshka 1024d + 256d)
FAISS IVF-PQ index on 256d vectors
kNN retrieval + cosine dedup + MMR diversity selection
Block assembly with \ tags + length/balance filtering
50/50 mixing with sequential data

Stats

Source: 5,000 FineWeb documents
Paragraphs: 4,677
Parallel samples: 821
Total samples: 1,642
Block-pair cosine similarity: ~0.33 mean

Downloads last month: 18

text string	blocks list	metadata unknown
<blk>\|Viewing Single Post From: Spoilers for the Week of February 11th\| \|Lil\|\|Feb 1 2013, 09:58 AM\| Don't care about Chloe/Taniel/Jen-Jen. Don't care about Sami, really, but hoping that we get some good "SAMANTHA GENE!!" Marlena Death-Stares out of it. And "newfound" feelings. Please. If only. STEFANO!! STEFANO, STEFAN...	[ "\|Viewing Single Post From: Spoilers for the Week of February 11th\|\n\|Lil\|\|Feb 1 2013, 09:58 AM\|\nDon't care about Chloe/Taniel/Jen-Jen. Don't care about Sami, really, but hoping that we get some good \"SAMANTHA GENE!!\" Marlena Death-Stares out of it. And \"newfound\" feelings. Please. If only.\nSTEFANO!! STEFANO,...	{ "num_blocks": 1, "type": "sequential" }
<blk>sigh Fundamentalist community, let me pass on some advice to you I learned from the atheistic community: If you have set yourself on fire, do not run. Okay? Okay?? Please? Look, D, you had two months to say to Harvard in private emails, "Im sorry, I shouldnt have been using that animation in my paid presentation...	[ "sigh Fundamentalist community, let me pass on some advice to you I learned from the atheistic community:\nIf you have set yourself on fire, do not run.\nOkay? Okay?? Please?\nLook, D, you had two months to say to Harvard in private emails, \"Im sorry, I shouldnt have been using that animation in my paid presenta...	{ "num_blocks": 1, "type": "sequential" }
<blk>A novel two-step immunotherapy approach has shown clinically beneficial responses in patients with advanced ovarian cancer. Following Lifestyle Recommendations Reduces Risk of Cancer Death People who follow the diet and lifestyle recommendations laid out by the WCRF and the AICR have a 20 percent reduced risk of d...	[ "A novel two-step immunotherapy approach has shown clinically beneficial responses in patients with advanced ovarian cancer. Following Lifestyle Recommendations Reduces Risk of Cancer Death\nPeople who follow the diet and lifestyle recommendations laid out by the WCRF and the AICR have a 20 percent reduced risk of ...	{ "num_blocks": 1, "type": "sequential" }
<blk>\|Facility Type:\|\|Full Service Restaurant\| \|Inspection date:\|\|March 27, 2012\| \|Number of critical violations:\|\|3\| \|Number of non-critical violations:\|\|3\| Definition of critical and non critical violations \|Code\|\|Observation / Corrective Action\| \|2-201.11(A)(1)-(5)\|\| Critical Repeat Upon discussion with the person-i...	[ "\|Facility Type:\|\|Full Service Restaurant\|\n\|Inspection date:\|\|March 27, 2012\|\n\|Number of critical violations:\|\|3\|\n\|Number of non-critical violations:\|\|3\|\nDefinition of critical and non critical violations\n\|Code\|\|Observation / Corrective Action\|\n\|2-201.11(A)(1)-(5)\|\| Critical Repeat Upon discussion with the pe...	{ "source_para_ids": [ 8, 3613, 1401 ], "num_blocks": 3, "total_tokens": 1286, "type": "parallel" }
<blk>Free the Cans! Working Together to Reduce Waste In a blog about how people share, it’s worth the occasional reference to the bizarre ways that people DON’T SHARE. Is it safe to say we live in a society that places great value on independence, private property, personal space, and privacy? Even sometimes extreme va...	[ "Free the Cans! Working Together to Reduce Waste\nIn a blog about how people share, it’s worth the occasional reference to the bizarre ways that people DON’T SHARE. Is it safe to say we live in a society that places great value on independence, private property, personal space, and privacy? Even sometimes extreme v...	{ "num_blocks": 1, "type": "sequential" }
<blk>Charlie's Big Betposted by Scott Engler Eleven of the nation's elite senior prospects who are still shopping will be on hand Saturday. So will 11 of Notre Dame's 15 committed recruits. And there will be 19 of the nation's top juniors in attendance.Irish Sports Daily reports that some of the top recruits in the cou...	[ "Charlie's Big Betposted by Scott Engler\nEleven of the nation's elite senior prospects who are still shopping will be on hand Saturday. So will 11 of Notre Dame's 15 committed recruits. And there will be 19 of the nation's top juniors in attendance.Irish Sports Daily reports that some of the top recruits in the co...	{ "source_para_ids": [ 577, 697, 17 ], "num_blocks": 3, "total_tokens": 3069, "type": "parallel" }
<blk>ORLANDO, Fla. — While the Rapid Recall Exchange, the 2-year-old industry recall portal, has signed up more than 600 manufacturer and retailer subscribers, it still lacks the “critical mass” of suppliers that would make it a primary source of recall information, according to trade association officials and retailer...	[ "ORLANDO, Fla. — While the Rapid Recall Exchange, the 2-year-old industry recall portal, has signed up more than 600 manufacturer and retailer subscribers, it still lacks the “critical mass” of suppliers that would make it a primary source of recall information, according to trade association officials and retailer...	{ "num_blocks": 1, "type": "sequential" }
<blk>Logan Miller, a student at Boyertown Junior High West and former student at Pine Forge Elementary, is one day looking to serve his county—and right now he’s trying to help his community. In preparation for applying to the U.S. Coast Guard Academy, Logan is looking to showcase his interest in community service by b...	[ "Logan Miller, a student at Boyertown Junior High West and former student at Pine Forge Elementary, is one day looking to serve his county—and right now he’s trying to help his community.\nIn preparation for applying to the U.S. Coast Guard Academy, Logan is looking to showcase his interest in community service by ...	{ "source_para_ids": [ 435, 23, 780 ], "num_blocks": 3, "total_tokens": 2372, "type": "parallel" }
<blk>September 28, 2010 2010 Season - Bowman pulls down CCIW honor \|Matt Bowman was named CCIW "Runner of the Week" after his fourth place finish at the Brissman-Lundeen Invitational in Rock Island, Illinois on September 24.\| Augustana senior Matt Bowman (Geneva HS, Elburn, Ill.) was selected as the “Runner of the Week...	[ "September 28, 2010\n2010 Season - Bowman pulls down CCIW honor\n\|Matt Bowman was named CCIW \"Runner of the Week\" after his fourth place finish at the Brissman-Lundeen Invitational in Rock Island, Illinois on September 24.\|\nAugustana senior Matt Bowman (Geneva HS, Elburn, Ill.) was selected as the “Runner of the...	{ "num_blocks": 1, "type": "sequential" }
<blk>Kraft Foods has taken the Cadbury chocolate brand in a new direction, by combining it with cheese for the first time. The company is bringing together two of its brands and launching Philadelphia with Cadbury, a chilled chocolate spread made from Philadelphia Light and Cadbury chocolate. Kraft believes the new pro...	[ "Kraft Foods has taken the Cadbury chocolate brand in a new direction, by combining it with cheese for the first time.\nThe company is bringing together two of its brands and launching Philadelphia with Cadbury, a chilled chocolate spread made from Philadelphia Light and Cadbury chocolate.\nKraft believes the new p...	{ "num_blocks": 1, "type": "sequential" }
<blk>You must be a registered member to view this page.\| If you are already a member, sign in now. To register for your own account, sign up now. Signing up will REMOVE MOST OF THE ANNOYING ADS from your screen. CLICK HERE TO CREATE YOUR ACCOUNT - Get advice - Make friends - Share your expertise - Post in our forums - ...	[ "You must be a registered member to view this page.\|\nIf you are already a member, sign in now.\nTo register for your own account, sign up now.\nSigning up will REMOVE MOST OF THE ANNOYING ADS from your screen.\nCLICK HERE TO CREATE YOUR ACCOUNT\n- Get advice\n- Make friends\n- Share your expertise\n- Post in our f...	{ "num_blocks": 1, "type": "sequential" }
<blk>The lovely Lee Goater sent me this picture of the sign from outside Saltaire Train Station. Donations unbelievably stand at ?2710.10 for Macmillan Cancer Care. Thank you so much for everyone who has donated or spread the word. You are ace. On my marks. I start at 9am. This Christmas Day I will run a half marathon....	[ "The lovely Lee Goater sent me this picture of the sign from outside Saltaire Train Station.\nDonations unbelievably stand at ?2710.10 for Macmillan Cancer Care.\nThank you so much for everyone who has donated or spread the word. You are ace.\nOn my marks. I start at 9am.\nThis Christmas Day I will run a half marat...	{ "source_para_ids": [ 704, 3103, 32 ], "num_blocks": 3, "total_tokens": 1509, "type": "parallel" }
<blk>\|Facility Type:\|\|Full Service Restaurant\| \|Inspection date:\|\|March 27, 2012\| \|Number of critical violations:\|\|3\| \|Number of non-critical violations:\|\|3\| Definition of critical and non critical violations \|Code\|\|Observation / Corrective Action\| \|2-201.11(A)(1)-(5)\|\| Critical Repeat Upon discussion with the person-i...	[ "\|Facility Type:\|\|Full Service Restaurant\|\n\|Inspection date:\|\|March 27, 2012\|\n\|Number of critical violations:\|\|3\|\n\|Number of non-critical violations:\|\|3\|\nDefinition of critical and non critical violations\n\|Code\|\|Observation / Corrective Action\|\n\|2-201.11(A)(1)-(5)\|\| Critical Repeat Upon discussion with the pe...	{ "num_blocks": 1, "type": "sequential" }
<blk>News of the Week Barrie Spring Studio Tour April 27th & 28th 10:00 til 4:00 pm Come on down to Jill Price Studios this weekend to check out works I have created over the last year, as well as find some neat works from my artistic past in tje awesome sales bins created just for this weekend. You will also be able t...	[ "News of the Week\nBarrie Spring Studio Tour\nApril 27th & 28th\n10:00 til 4:00 pm\nCome on down to Jill Price Studios this weekend to check out works I have created over the last year, as well as find some neat works from my artistic past in tje awesome sales bins created just for this weekend. You will also be ab...	{ "num_blocks": 1, "type": "sequential" }
<blk>Category Archives: 2010 – 2011 TO: The University Community RE: Budget Challenges for 2011-2012 and the 2011 Regular Legislative Session Weeks ago, the Jindal administration sought to lessen state-wide tensions over the future funding of postsecondary education by announcing that any budget cut for the 2011-2012 f...	[ "Category Archives: 2010 – 2011\nTO: The University Community RE: Budget Challenges for 2011-2012 and the 2011 Regular Legislative Session Weeks ago, the Jindal administration sought to lessen state-wide tensions over the future funding of postsecondary education by announcing that any budget cut for the 2011-2012 ...	{ "num_blocks": 1, "type": "sequential" }
<blk>Our jersey leggings are so versatile, they work just as well under a tunic as they do under an oversized tee and long-line cardi. Made in soft, easy care jersey, they provide effortless comfort and style season after season. Now with improved fit. Sign up to our email newsletter to receive the latest trends and st...	[ "Our jersey leggings are so versatile, they work just as well under a tunic as they do under an oversized tee and long-line cardi. Made in soft, easy care jersey, they provide effortless comfort and style season after season. Now with improved fit.\nSign up to our email newsletter to receive the latest trends and s...	{ "source_para_ids": [ 33, 515, 2809 ], "num_blocks": 3, "total_tokens": 466, "type": "parallel" }
<blk>The Net Neutrality repeal vote is coming. Tell these Dems to vote Yes. The House of Representatives is likely to vote tomorrow, Thursday, on the repeal of the FCC’s Net Neutrality power grab. Using the Congressional Review Act, the repeal of the Net Neutrality order can be accomplished in an expedited way. In part...	[ "The Net Neutrality repeal vote is coming. Tell these Dems to vote Yes.\nThe House of Representatives is likely to vote tomorrow, Thursday, on the repeal of the FCC’s Net Neutrality power grab. Using the Congressional Review Act, the repeal of the Net Neutrality order can be accomplished in an expedited way. In par...	{ "num_blocks": 1, "type": "sequential" }
<blk>Everybody has their own way of dealing with MCAS [Mast Cell Activation Syndrome]. Some document their symptoms and share pictures of their reactions. Others discuss treatment options that have helped or made them worse. Personally, I either disappear off the face of the earth – that’s when I’m truly struggling – o...	[ "Everybody has their own way of dealing with MCAS [Mast Cell Activation Syndrome].\nSome document their symptoms and share pictures of their reactions.\nOthers discuss treatment options that have helped or made them worse.\nPersonally, I either disappear off the face of the earth – that’s when I’m truly struggling ...	{ "source_para_ids": [ 2832, 2523, 44 ], "num_blocks": 3, "total_tokens": 1472, "type": "parallel" }
<blk>4 Common Startup Mistakes To Avoid Posted on July 25, 2012 by nina Published by Fast Company With all the startups I’ve seen, and I’ve coached over 700 by now, I’ve become somewhat of an expert on common mistakes startups make. So when I find someone doing it right, I like to share. Thomas Franchise Solutions is l...	[ "4 Common Startup Mistakes To Avoid\nPosted on July 25, 2012 by nina\nPublished by Fast Company\nWith all the startups I’ve seen, and I’ve coached over 700 by now, I’ve become somewhat of an expert on common mistakes startups make. So when I find someone doing it right, I like to share.\nThomas Franchise Solutions ...	{ "source_para_ids": [ 494, 2312, 51 ], "num_blocks": 3, "total_tokens": 1875, "type": "parallel" }
<blk>Game Index \| Deeper into the DarklandsYour Next Campaign picks up the action at Act II, in Beneath a Granite Sky, Part II. [ Read FAQ \| Subscribe to RSS \| Partner Sites \| Contact Us \| Advertise with Us ] Copyright © 1996-2009 Skotos Tech, Inc. & individual authors, All Rights Reserved Compilation copyright © 1996-...	[ "Game Index \|\nDeeper into the DarklandsYour Next Campaign picks up the action at Act II, in Beneath a Granite Sky, Part II.\n[ Read FAQ \| Subscribe to RSS \| Partner Sites \| Contact Us \| Advertise with Us ]\nCopyright © 1996-2009 Skotos Tech, Inc. & individual authors, All Rights Reserved\nCompilation copyright © 1...	{ "num_blocks": 1, "type": "sequential" }
<blk>NEW YORK — Rupert Murdoch’s News Corp. reported that its fiscal ’93 profit soared 57%, bolstered by strong showings from its TV, newspaper and magazine units, which more than offset the lackluster performance of its Hollywood studio , 20th Century Fox Film Corp. The Australia-based media and entertainment behemoth...	[ "NEW YORK — Rupert Murdoch’s News Corp. reported that its fiscal ’93 profit soared 57%, bolstered by strong showings from its TV, newspaper and magazine units, which more than offset the lackluster performance of its Hollywood studio , 20th Century Fox Film Corp. The Australia-based media and entertainment behemoth...	{ "source_para_ids": [ 1968, 2621, 52 ], "num_blocks": 3, "total_tokens": 1041, "type": "parallel" }
<blk>Great decorating addition I have a grape/Italian theme in my kitchen. I purchased 5 of these. I decided to use them to put around my pull knobs on my overhead cabinets. Now I am ordering more to sprinkle around in other places in the kitchen - even to hang up via suction cups on my white kitchen tile. September 20...	[ "Great decorating addition\nI have a grape/Italian theme in my kitchen. I purchased 5 of these. I decided to use them to put around my pull knobs on my overhead cabinets. Now I am ordering more to sprinkle around in other places in the kitchen - even to hang up via suction cups on my white kitchen tile.\nSeptember ...	{ "num_blocks": 1, "type": "sequential" }
<blk>Bible-black with a blinding white logo raging across the chest. It’s the time honoured Black Band Tee. Every band has one. If you’re in a band and you ain’t got a Black Band Tee then you ain’t even in a band, you’re in a sham! And if you’re a fan of a band and you don’t own the Black Band Tee then what kind of fan...	[ "Bible-black with a blinding white logo raging across the chest. It’s the time honoured Black Band Tee. Every band has one. If you’re in a band and you ain’t got a Black Band Tee then you ain’t even in a band, you’re in a sham! And if you’re a fan of a band and you don’t own the Black Band Tee then what kind of fan...	{ "num_blocks": 1, "type": "sequential" }
<blk>Create an Account - Increase your productivity, customize your experience, and engage in information you care about. Republic is trying to eliminate glass at their facility. Glass is very hard on the equipment. Also there is a limited demand for the recycled glass. Republic has stated that a majority of glass that...	[ "Create an Account - Increase your productivity, customize your experience, and engage in information you care about.\nRepublic is trying to eliminate glass at their facility. Glass is very hard on the equipment. Also there is a limited demand for the recycled glass. Republic has stated that a majority of glass tha...	{ "source_para_ids": [ 1542, 56, 1791 ], "num_blocks": 3, "total_tokens": 2685, "type": "parallel" }